CN113798032A - Preparation method of recycled concrete - Google Patents
Preparation method of recycled concrete Download PDFInfo
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- CN113798032A CN113798032A CN202111261465.9A CN202111261465A CN113798032A CN 113798032 A CN113798032 A CN 113798032A CN 202111261465 A CN202111261465 A CN 202111261465A CN 113798032 A CN113798032 A CN 113798032A
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- concrete
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/16—Mills provided with vibrators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/02—Codes relating to disintegrating devices adapted for specific materials for reinforced concrete
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to a preparation method of recycled concrete, which uses a recycled concrete preparation device to crush and separate concrete columns, wherein the recycled concrete preparation device comprises: the concrete block collecting box and the steel bar collecting box are respectively arranged on two sides of the lower part of the support frame; a torsion mechanism; a tapping mechanism; a transport mechanism; the preparation method of the recycled concrete comprises the following steps: s1, feeding and fixing; s2, separating reinforced concrete; s3, crushing and collecting concrete; and S4, collecting the reinforcing steel bars. According to the invention, the first fixing mechanism and the second fixing mechanism are driven by the electric pole to fix the concrete column to be crushed, so that when the torsion mechanism twists and crushes the concrete column, the concrete block on the concrete column is crushed and falls off under the action of torsion force, and therefore, the concrete block cannot splash out of the equipment during crushing, and the concrete column is safer and more reliable.
Description
Technical Field
The invention relates to the technical field of recycled concrete, in particular to a preparation method of recycled concrete.
Background
The recycled concrete is characterized in that waste concrete blocks are crushed, cleaned and classified and then mixed with gradation according to a certain proportion, natural aggregates (mainly coarse aggregates) such as sand stones are partially or completely replaced, cement, water and the like are added to form new concrete, the waste concrete blocks are usually formed by crushing concrete columns, in the process that the concrete columns are changed into the coarse aggregates, the concrete columns are firstly crushed and dismantled through a crushing hammer on site, steel bars in the concrete columns are separated, the concrete blocks obtained after the concrete columns are crushed are collected and placed into crushing equipment to be crushed, and the concrete blocks become the coarse aggregates capable of producing the recycled concrete, and the following problems exist in the existing operation mode:
1. because the breaking hammer is a device for impacting the surface of the concrete column, when the breaking hammer breaks the concrete column, the concrete block is easy to jump out to influence the personal safety of workers;
2. concrete blocks can remain after the separated reinforcing steel bars are removed through the breaking hammer, so that the reinforcing steel bars need to be manually cleaned for the second time after being recovered, and the process is time-consuming and labor-consuming;
the present invention is designed to solve the above problems.
Disclosure of Invention
In view of the above, it is necessary to provide a safe and efficient recycled concrete preparation method.
The invention discloses a preparation method of recycled concrete, which adopts a recycled concrete preparation device to crush and separate concrete columns, wherein the recycled concrete preparation device comprises: the concrete block collecting box and the steel bar collecting box are respectively arranged on two sides of the lower part of the support frame; the torsion mechanism is arranged on the support frame and arranged in the working cavity, and is used for clamping a concrete column and applying torsion force to two ends of the concrete column so as to crush concrete from a reinforcing steel bar; the rapping mechanism is arranged on the support frame and arranged in the working cavity, and is used for vibrating and impacting the surfaces of the concrete column and the steel bar; the conveying mechanism is arranged on the supporting frame and is positioned between the working cavity and the concrete block collecting box;
the preparation method of the recycled concrete comprises the following steps: s1, feeding and fixing: horizontally placing the removed concrete column into the working cavity, and clamping two ends of the concrete column by using the torsion mechanism; s2, separating reinforced concrete: the twisting mechanism is utilized to apply twisting force to the two ends of the concrete column, so that concrete is crushed from the reinforcing steel bars, and then the beating mechanism is utilized to beat the reinforcing steel bars in the concrete column, so that crushed concrete blocks and concrete blocks on the surface of the reinforcing steel bars fall off quickly; s3, concrete crushing and collecting: conveying the crushed concrete blocks into a concrete block collecting box by using the conveying mechanism; s4, steel bar collection: and conveying the reinforcing steel bars into the reinforcing steel bar collecting box by using the conveying mechanism.
In one embodiment, the torsion mechanism comprises: the first bracket is connected to one side of the support frame in a sliding mode, and one end of the first bracket penetrates through the side wall of the support frame and extends into the working cavity; the electric pole is fixedly connected to one side of the support frame, and the output end of the electric pole penetrates through the side wall of the support frame and is fixedly connected with the first support; the first fixing mechanism is fixedly connected to one end, extending into the working cavity, of the first support and comprises a first driving block in sliding connection with the first support and a first clamping jaw hinged to the first support, a first connecting rod is hinged between the first driving block and the first clamping jaw, and a first spring is mounted between the first driving block and the first support; the second bracket is fixedly connected to the other side of the support frame and is positioned in the working cavity; the output end of the first motor is fixedly connected with the second bracket to drive the second bracket to rotate; the second fixing mechanism is fixedly connected to the second support, the second fixing mechanism comprises a second driving block and a second clamping jaw, the second driving block is connected with the second support in a sliding mode, the second clamping jaw is hinged to the second support, a second connecting rod is hinged between the second driving block and the second clamping jaw, and a second spring is installed between the second driving block and the second support.
In one embodiment, in S1, the disassembled concrete column is horizontally placed into the working chamber, so that the axis of the concrete column is aligned with the center of the first fixing mechanism and the second fixing mechanism, then the electric pole is started to extend the output end of the electric pole, and the first bracket is further pushed to move towards the second bracket, until the two ends of the concrete column contact with the first driving block and the second driving block respectively, the output end of the electric pole is further extended outwards, the two ends of the concrete column are driven to push the first driving block and the second driving block respectively to compress the first spring and the second spring, when the first driving block moves to compress the first spring, the first connecting rod hinged with the first driving block is driven to move outwards, so as to drive the free end of the first clamping jaw to move inwards to clamp one end of the concrete column, and simultaneously, when the second driving block moves to compress the second spring, the second connecting rod hinged with the second driving block is driven to move outwards, and then the free end of the second clamping jaw is driven to move inwards to clamp the other end of the concrete column, so that the concrete column is fixed, and the feeding and fixing work is completed.
In one embodiment, the tapping mechanism comprises: the driving belt pulley is fixedly connected to the second support, the driving belt pulley is connected with a driven belt pulley through a belt, a transmission shaft which is rotatably connected with the support frame is fixedly connected to the center of the driven belt pulley, and a notch gear is fixedly connected to the transmission shaft; the beating rod is connected to the support frame in a sliding mode, a rack meshed with the notch gear is fixedly connected to the beating rod, and a third spring used for pushing the beating rod to move towards the reinforcing steel bar to beat is installed between the beating rod and the support frame.
In one embodiment, in S2, the first motor is started to drive the second bracket to rotate, so as to apply a torsional force to the concrete column, and the concrete on the concrete column is broken from the steel bars under the action of the torsional force; when the second support is rotatory, drive the synchronous rotation of drive pulley, drive pulley passes through the belt with power transmission to driven pulley on, make driven pulley rotatory thereupon, and then drive the breach gear through the transmission shaft and rotate, when the breach gear is clockwise rotatory, drive the rack and remove, and then drive and beat the pole and contract and compress the third spring simultaneously, and when the breach gear is rotatory to its breach position, beat the pole under the effect of third spring and outwards remove rapidly and stretch out and beat the reinforcing bar in the concrete column, thereby let broken concrete piece and the concrete piece on reinforcing bar surface drop fast.
In one embodiment, the transmission mechanism comprises an output wheel and a driven wheel which are rotatably connected to the support frame, the output wheel and the driven wheel are jointly connected with a transmission belt, and the output wheel is connected with a second motor fixedly connected with the support frame.
In one embodiment, a crushing mechanism for crushing the concrete blocks is installed between the conveying mechanism and the concrete block collecting box, and the crushing mechanism comprises: the driving chain wheel is fixedly connected to the output end of the second motor, and is connected with a driven chain wheel which is rotationally connected with the inner wall of the concrete block collecting box through a chain; the rotating wheel is fixedly connected to the end face of the driven chain wheel and is concentric with the driven chain wheel, and the end face of the rotating wheel is rotatably connected with a connecting rod; and one end of the crushing plate is hinged to the inner wall of the concrete block collecting box, and the other end of the crushing plate is hinged to the free end of the connecting rod.
In one embodiment, in S3, after the reinforced concrete separation is completed, the concrete block falls onto the conveyor belt, and then the second motor rotates forward to drive the conveyor belt to rotate forward and convey the concrete block to fall into the crushing plate, and the second motor rotates and simultaneously drives the driving sprocket to rotate, so as to drive the driven sprocket to rotate through the chain, so that the rotating wheel rotates synchronously with the driven sprocket, thereby driving the crushing plate to crush the concrete block through the connecting rod, and the crushed concrete block falls into the concrete block collecting box.
In one embodiment, in S4, the electric pole is first started to contract, the first bracket is driven to move away from the second bracket, the first driving block and the second driving block are pushed under the action of the first spring and the second spring to open the first clamping jaw and the second clamping jaw, so that the steel bar falls from the first clamping jaw and the second clamping jaw onto the conveyor belt, and then the second motor is started to rotate reversely to drive the steel bar to fall into the steel bar collecting box for collection.
The invention has the advantages that:
1. drive first fixed establishment and second fixed establishment through the pole and will treat broken concrete column and fix for torsion mechanism is twisting reverse when broken to the concrete column, and the concrete piece on the concrete column is cracked and drops under the torsional force effect, thereby concrete piece can not the fly-away equipment when broken, safe and reliable more.
2. Through the continuous rotation of torsion mechanism for the reinforcing bar in the concrete column twists reverse many times and reinforcing bar surface takes place deformation, thereby lets remaining concrete piece drop on the reinforcing bar, and is cleaner.
3. Carry out the vibrations through beating the mechanism and assault concrete column and reinforcing bar surface, make to twist reverse broken concrete piece and the concrete piece on reinforcing bar surface and can drop more fast to improve whole work efficiency.
Drawings
FIG. 1 is a side view of the mechanism of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a sectional view taken along line B-B of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged view of a portion of the area I of FIG. 1 in accordance with the present invention;
FIG. 5 is an enlarged view of a portion of the invention in the area II of FIG. 1;
FIG. 6 is an enlarged view of a portion of the invention in the area III of FIG. 1.
In the figure, the support frame 1, the reinforcing steel bar collecting box 11, the concrete block collecting box 12, the working chamber 13, the electric pole 2, the first support 21, the first fixing mechanism 3, the first driving block 31, the first spring 32, the first connecting rod 33, the first clamping jaw 34, the second fixing mechanism 4, the second driving block 41, the second spring 42, the second connecting rod 43, the second clamping jaw 44, the second support 45, the first motor 5, the second motor 6, the transmission belt 61, the output wheel 62, the driven wheel 63, the driving pulley 7, the belt 71, the driven pulley 72, the transmission shaft 73, the notch gear 74, the rack 75, the rapping rod 76, the limiting block 761, the reinforcing ring 762, the third spring 77, the crushing plate 8, the connecting rod 81, the driven sprocket 82, the rotating wheel 83, the chain 84 and the driving sprocket 85 are shown.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
A recycled concrete preparing method, as shown in fig. 1, the recycled concrete preparing method crushing and separating a concrete column by using a recycled concrete preparing apparatus, the recycled concrete preparing apparatus comprising: the concrete block collecting device comprises a support frame 1, wherein a working cavity 13 is arranged at the upper part of the support frame 1, and a concrete block collecting box 12 and a reinforcing steel bar collecting box 11 are respectively arranged at two sides of the lower part of the support frame 1; the torsion mechanism is arranged on the support frame 1 and arranged in the working cavity 13, and is used for clamping a concrete column and applying torsion force to two ends of the concrete column so as to crush concrete from a reinforcing steel bar; the rapping mechanism is arranged on the support frame 1 and arranged in the working cavity 13, and is used for vibrating and impacting the surfaces of the concrete column and the steel bar; the conveying mechanism is arranged on the support frame 1 and is positioned between the working cavity 13 and the concrete block collecting box 12;
the preparation method of the recycled concrete comprises the following steps: s1, feeding and fixing: horizontally placing the removed concrete column into the working cavity 13, and clamping two ends of the concrete column by using the torsion mechanism; s2, separating reinforced concrete: the twisting mechanism is utilized to apply twisting force to the two ends of the concrete column, so that concrete is crushed from the reinforcing steel bars, and then the beating mechanism is utilized to beat the reinforcing steel bars in the concrete column, so that crushed concrete blocks and concrete blocks on the surface of the reinforcing steel bars fall off quickly; s3, concrete crushing and collecting: the crushed concrete blocks are conveyed into the concrete block collecting box 12 by the conveying mechanism; s4, steel bar collection: the reinforcing bars are conveyed into the reinforcing bar collecting box 11 by the conveying mechanism.
Preferably, as shown in fig. 1, 5 and 6, the torsion mechanism includes: the first bracket 21 is slidably connected to one side of the support frame 1, and one end of the first bracket 21 penetrates through the side wall of the support frame 1 and extends into the working cavity 13; the electric pole 2 is fixedly connected to one side of the support frame 1, and the output end of the electric pole 2 penetrates through the side wall of the support frame 1 and is fixedly connected with the first support 21; the first fixing mechanism 3 is fixedly connected to one end, extending into the working cavity 13, of the first bracket 21, the first fixing mechanism 3 comprises a first driving block 31 connected with the first bracket 21 in a sliding manner and a first clamping jaw 34 hinged to the first bracket 21, a first connecting rod 33 is hinged between the first driving block 31 and the first clamping jaw 34, and a first spring 32 is installed between the first driving block 31 and the first bracket 21; the second bracket 45 is fixedly connected to the other side of the support frame 1 and is positioned in the working cavity 13; the first motor 5 is fixedly connected to the support frame 1, and the output end of the first motor 5 is fixedly connected with the second bracket 45 to drive the second bracket 45 to rotate; the second fixing mechanism 4 is fixedly connected to the second support 45, the second fixing mechanism 4 includes a second driving block 41 slidably connected to the second support 45 and a second clamping jaw 44 hinged to the second support 45, a second connecting rod 43 is hinged between the second driving block 41 and the second clamping jaw 44, and a second spring 42 is installed between the second driving block 41 and the second support 45.
It is worth mentioning that, as shown in fig. 1 and fig. 2, the first clamping jaw 34 and the second clamping jaw 44 are all provided with four, four the first clamping jaw 34 uses the central axis of the first driving block 31 as the central circumference and the same angle distribution, four the second clamping jaw 44 uses the central axis 41 of the second driving block as the central circumference and the same angle distribution, and the central axis of the first driving block 31 and the central axis of the second driving block 41 are located on the same straight line.
Preferably, as shown in fig. 1, 5 and 6, in said S1, the removed concrete column is horizontally placed into the working chamber 13, so that the axis of the concrete column is aligned with the center of the first fixing mechanism 3 and the second fixing mechanism 4, then the electric pole 2 is started to extend the output end of the electric pole out, and further push the first bracket 21 to move towards the second bracket 45, until the two ends of the concrete column respectively contact with the first driving block 31 and the second driving block 41, and continue to extend the output end of the electric pole 2 out, so as to drive the two ends of the concrete column to respectively push the first driving block 31 and the second driving block 41 to compress the first spring 32 and the second spring 42, when the first driving block 31 moves to compress the first spring 32, the first connecting rod 33 hinged to the first driving block 31 is driven to move outwards, and further drive the free end of the first clamping jaw 34 to move inwards to clamp one end of the concrete column, and simultaneously, when the second driving block 41 moves to compress the second spring 42, the second connecting rod 43 hinged with the second driving block 41 is driven to move outwards, and then the free end of the second clamping jaw 44 is driven to move inwards to clamp the other end of the concrete column, so that the concrete column is fixed, and the feeding and fixing work is completed.
Preferably, as shown in fig. 1, 2 and 3, the striking mechanism includes: the driving pulley 7 is fixedly connected to the second bracket 45, the driving pulley 7 is connected to a driven pulley 72 through a belt 71, a transmission shaft 73 rotatably connected to the support frame 1 is fixedly connected to the center of the driven pulley 72, and a notch gear 74 is fixedly connected to the transmission shaft 73; and the knocking rod 76 is slidably connected to the support frame 1, a rack 75 meshed with the notched gear 74 is fixedly connected to the knocking rod 76, and a third spring 77 for pushing the knocking rod 76 to move towards the steel bar for knocking is arranged between the knocking rod 76 and the support frame 1.
It is worth mentioning that, as shown in fig. 1 and 2, a limiting block 761 for limiting the extension length of the striking rod 76 is fixedly connected to the striking rod 76, when the notch gear 74 rotates to the notch position, the striking rod 76 rapidly extends outwards under the action of the third spring 77 to strike the steel bar in the concrete column, and the limiting block 761 can avoid the situation that the notch gear 74 and the rack 75 are separated due to the excessive extension of the striking rod 76.
It can be understood that, as shown in fig. 2, the knocking rod 76 is in a T shape with a side reversed, so as to increase a contact area between the knocking rod 76 and the reinforcing steel bar, a reinforcing ring 762 is fixedly connected to one side of the vertical limb of the knocking rod 76 facing the third spring 77, and the third spring 77 is sleeved on the reinforcing ring 762, so that the third spring 77 can be more stable when it extends and retracts back and forth.
Preferably, as shown in fig. 1, 2 and 3, in S2, the first motor 5 is started to drive the second bracket 45 to rotate, so as to apply a torsional force to the concrete column, and the concrete on the concrete column is crushed from the steel bar under the action of the torsional force; when the second support 45 is rotatory, drive pulley 7 synchronous rotation, drive pulley 7 passes through belt 71 with power transmission to driven pulley 72 on, make driven pulley 72 rotatory thereupon, and then drive notch gear 74 through transmission shaft 73 and rotate, when notch gear 74 clockwise rotation, drive rack 75 removes, and then drive and strike pole 76 shrink and compress third spring 77 simultaneously, and when notch gear 74 was rotatory to its breach position, strike pole 76 under the effect of third spring 77 and outwards remove rapidly and stretch out and strike the reinforcing bar in the concrete column, thereby let broken concrete piece and the concrete piece on reinforcing bar surface drop fast.
It is worth mentioning that when the notch gear 74 is rotated to its notch position, as shown in fig. 2, the notch gear 74 is just disengaged from the rack 75.
Preferably, as shown in fig. 1 and 4, the transmission mechanism includes an output wheel 62 and a driven wheel 63 rotatably connected to the support frame 1, the output wheel 62 and the driven wheel 63 are jointly connected to a transmission belt 61, and the output wheel 62 is connected to a second motor 6 fixedly connected to the support frame 1.
Preferably, as shown in fig. 1 and 4, a crushing mechanism for crushing the concrete blocks is installed between the conveying mechanism and the concrete block collecting box 12, and the crushing mechanism includes: the driving chain wheel 85 is fixedly connected to the output end of the second motor 6, and the driving chain wheel 85 is connected with a driven chain wheel 82 which is rotatably connected with the inner wall of the concrete block collecting box 12 through a chain 84; the rotating wheel 83 is fixedly connected to the end face of the driven chain wheel 82 and is concentric with the end face of the driven chain wheel 82, and the end face of the rotating wheel 82 is rotatably connected with the connecting rod 81; one end of the crushing plate 8 is hinged with the inner wall of the concrete block collecting box 12, and the other end is hinged with the free end of the connecting rod 81.
Preferably, as shown in fig. 1 and 4, in S3, after the reinforced concrete separation is completed, the concrete block falls onto the conveyor belt 61, and then the second motor 6 rotates forward to drive the conveyor belt 61 to transmit forward and convey the concrete block to the crushing plate 8, and the second motor rotates and drives the driving sprocket 85 to rotate, so as to drive the driven sprocket 82 to rotate through the chain 84, so that the rotating wheel 83 rotates synchronously with the driven sprocket 82, thereby driving the crushing plate 8 to crush the concrete block through the connecting rod 81, and the crushed concrete block falls into the concrete block collecting box 12.
It is worth mentioning that, as shown in fig. 1 and 4, the crushing plate 8 is disposed obliquely, and a chamber for dropping concrete blocks is formed between the crushing plate 8 and the concrete block collecting box 12, and then the crushing plate 8 swings back and forth to crush the concrete blocks.
Preferably, as shown in fig. 1, 4, 5, and 6, in said S4, the electric pole 2 is first started to contract, so as to drive the first bracket 21 to move away from the second bracket 45, the first driving block 31 and the second driving block 41 are pushed under the action of the first spring 32 and the second spring 42, so as to open the first clamping jaw 34 and the second clamping jaw 44, so that the steel bar falls from the first clamping jaw 34 and the second clamping jaw 44 onto the conveyor belt 61, and then the second motor 6 is started to rotate reversely, so as to drive the steel bar to fall into the steel bar collecting box 11 for collection.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The preparation method of the recycled concrete is characterized in that the preparation method of the recycled concrete is used for crushing and separating a concrete column by using a recycled concrete preparation device, and the recycled concrete preparation device comprises:
the concrete block collecting box and the steel bar collecting box are respectively arranged on two sides of the lower part of the support frame;
the torsion mechanism is arranged on the support frame and arranged in the working cavity, and is used for clamping a concrete column and applying torsion force to two ends of the concrete column so as to crush concrete from a reinforcing steel bar;
the rapping mechanism is arranged on the support frame and arranged in the working cavity, and is used for vibrating and impacting the surfaces of the concrete column and the steel bar;
the conveying mechanism is arranged on the supporting frame and is positioned between the working cavity and the concrete block collecting box;
the preparation method of the recycled concrete comprises the following steps:
s1, feeding and fixing: horizontally placing the removed concrete column into the working cavity, and clamping two ends of the concrete column by using the torsion mechanism;
s2, separating reinforced concrete: the twisting mechanism is utilized to apply twisting force to the two ends of the concrete column, so that concrete is crushed from the reinforcing steel bars, and then the beating mechanism is utilized to beat the reinforcing steel bars in the concrete column, so that crushed concrete blocks and concrete blocks on the surface of the reinforcing steel bars fall off quickly;
s3, concrete crushing and collecting: conveying the crushed concrete blocks into a concrete block collecting box by using the conveying mechanism;
s4, steel bar collection: and conveying the reinforcing steel bars into the reinforcing steel bar collecting box by using the conveying mechanism.
2. The recycled concrete preparation method of claim 1, wherein said torsion mechanism comprises:
the first bracket is connected to one side of the support frame in a sliding mode, and one end of the first bracket penetrates through the side wall of the support frame and extends into the working cavity;
the electric pole is fixedly connected to one side of the support frame, and the output end of the electric pole penetrates through the side wall of the support frame and is fixedly connected with the first support;
the first fixing mechanism is fixedly connected to one end, extending into the working cavity, of the first support and comprises a first driving block in sliding connection with the first support and a first clamping jaw hinged to the first support, a first connecting rod is hinged between the first driving block and the first clamping jaw, and a first spring is mounted between the first driving block and the first support;
the second bracket is fixedly connected to the other side of the support frame and is positioned in the working cavity;
the output end of the first motor is fixedly connected with the second bracket to drive the second bracket to rotate;
the second fixing mechanism is fixedly connected to the second support, the second fixing mechanism comprises a second driving block and a second clamping jaw, the second driving block is connected with the second support in a sliding mode, the second clamping jaw is hinged to the second support, a second connecting rod is hinged between the second driving block and the second clamping jaw, and a second spring is installed between the second driving block and the second support.
3. The recycled concrete manufacturing method of claim 2, wherein in step S1, the removed concrete column is horizontally placed into the working chamber, the axis of the concrete column is aligned with the center of the first fixing mechanism and the second fixing mechanism, then the electric pole is started to extend the output end of the electric pole, and further the first support is pushed to move towards the second support, until the two ends of the concrete column contact with the first driving block and the second driving block respectively, the output end of the electric pole is extended outwards, the two ends of the concrete column are driven to push the first driving block and the second driving block respectively to compress the first spring and the second spring, when the first driving block moves to compress the first spring, the first connecting rod hinged with the first driving block is driven to move outwards, and further the free end of the first clamping jaw is driven to move inwards to clamp one end of the concrete column, and simultaneously, when the second driving block moves to compress the second spring, the second connecting rod hinged with the second driving block is driven to move outwards, and then the free end of the second clamping jaw is driven to move inwards to clamp the other end of the concrete column, so that the concrete column is fixed, and the feeding fixing work is completed.
4. The recycled concrete preparation method of claim 2, wherein said rapping mechanism comprises:
the driving belt pulley is fixedly connected to the second support, the driving belt pulley is connected with a driven belt pulley through a belt, a transmission shaft which is rotatably connected with the support frame is fixedly connected to the center of the driven belt pulley, and a notch gear is fixedly connected to the transmission shaft;
the beating rod is connected to the support frame in a sliding mode, a rack meshed with the notch gear is fixedly connected to the beating rod, and a third spring used for pushing the beating rod to move towards the reinforcing steel bar to beat is installed between the beating rod and the support frame.
5. The recycled concrete preparation method of claim 4, wherein in S2, the first motor is started to drive the second bracket to rotate, so as to apply a torsional force to the concrete column, and the concrete on the concrete column is crushed from the steel bars under the action of the torsional force; when the second support is rotatory, drive the synchronous rotation of drive pulley, drive pulley passes through the belt with power transmission to driven pulley on, make driven pulley rotatory thereupon, and then drive the breach gear through the transmission shaft and rotate, when the breach gear is clockwise rotatory, drive the rack and remove, and then drive and beat the pole and contract and compress the third spring simultaneously, and when the breach gear is rotatory to its breach position, beat the pole under the effect of third spring and outwards remove rapidly and stretch out and beat the reinforcing bar in the concrete column, thereby let broken concrete piece and the concrete piece on reinforcing bar surface drop fast.
6. The recycled concrete preparation method of claim 4, wherein the conveying mechanism comprises an output wheel and a driven wheel which are rotatably connected to the support frame, the output wheel and the driven wheel are jointly connected with a conveying belt, and the output wheel is connected with a second motor fixedly connected with the support frame.
7. The recycled concrete preparing method according to claim 6, wherein a crushing mechanism for crushing the concrete blocks is installed between the conveying mechanism and the concrete block collecting box, and the crushing mechanism comprises:
the driving chain wheel is fixedly connected to the output end of the second motor, and is connected with a driven chain wheel which is rotationally connected with the inner wall of the concrete block collecting box through a chain;
the rotating wheel is fixedly connected to the end face of the driven chain wheel and is concentric with the driven chain wheel, and the end face of the rotating wheel is rotatably connected with a connecting rod;
and one end of the crushing plate is hinged to the inner wall of the concrete block collecting box, and the other end of the crushing plate is hinged to the free end of the connecting rod.
8. The recycled concrete manufacturing method of claim 7, wherein in step S3, after the reinforced concrete is separated, the concrete blocks drop onto the conveyor belt, and then the second motor rotates in a forward direction to drive the conveyor belt to rotate in a forward direction and convey the concrete blocks into the crushing plate, and the second motor rotates to drive the driving sprocket to rotate, so that the chain drives the driven sprocket to rotate, so that the rotating wheel rotates synchronously with the driven sprocket, and the crushing plate is driven by the connecting rod to crush the concrete blocks, and the crushed concrete blocks drop into the concrete block collecting box.
9. The recycled concrete preparing method of claim 7, wherein in the step S4, the electric pole is firstly started to contract to drive the first bracket to move away from the second bracket, the first driving block and the second driving block are pushed under the action of the first spring and the second spring to open the first clamping jaw and the second clamping jaw, so that the steel bar falls from the first clamping jaw and the second clamping jaw onto the conveyor belt, and then the second motor is started to rotate reversely to drive the steel bar to fall into the steel bar collecting box to be collected.
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